Santiago Velásquez Chang

Computer Science, George Mason. Building cloud systems, LLM pipelines and fintech products across the Americas.

01 About
Santiago Velásquez Chang

Engineer, consultant, operator.

Born in Venezuela, trained at Tecnológico de Monterrey, finishing a B.S. in Computer Science at George Mason University in May 2026. Three countries, three ways to work — I've never bought the idea that the person who builds has to be different from the person who advises.

On the build side: Summer 2025 at AWS, where I shipped a Python / React / LLM platform that cut public-sector contact discovery from 5–7 days to 1 hour. Secure APIs and SQL for a national bank in Caracas before that. And my own app — Punches — live in the wild at punchesapp.com.

On the advise and operate side: business strategy at EY, the McKinsey Forward program, co-building Quoota as a Venezuelan startup, automating startup intake at Digital Hub in Monterrey, and now Lead Consultant at Mason Consulting Group. Same person, three modes: build, advise, operate.

02 Experience

Five years, six chapters.

  1. Lead Consultant

    Mason Consulting Group · Fairfax · Jan 2026 →

    Management consulting for Fairfax-County clients across financial, marketing, and software-engineering improvement engagements.

  2. Software Engineer Intern

    Banco Nacional de Crédito · Caracas · May — Jul 2024
    • Built a Flutter / Dart mobile banking app — +25% engagement in Q2.
    • Tuned SQL for 600+ daily transactions with zero downtime.
    • Secure API endpoints for real-time balance queries & transaction tracking.
    FlutterDartSQLAPIs
  3. Software Engineering Intern

    Digital Hub · Monterrey · Jan — May 2024
    • Automated startup admission with Python + HubSpot APIs — -40% review time.
    • PowerBI + Excel dashboards — +60% outreach visibility.
    • Tracked 50+ evaluated startups; 12 advanced to final review.
    PythonHubSpotPowerBI
  4. Business Analyst Intern

    EY · Caracas · Jun — Aug 2023

    Built business & technology tooling for market analysis and supply-chain optimization across enterprise clients.

    AnalyticsStrategy
  5. Director of Sponsors

    VANT TEC · Tec de Monterrey · Feb — Aug 2023

    Secured $20K+ in technology sponsorships integrated directly into the team's autonomous-vehicle systems.

03 Work

Some of my
work.

A few projects worth showing. Scroll right.

Scroll →
01
Live · Side project

Punches App

A social punch-card app — log workouts, build streaks, throw combinations at friends. Shipped, live, and very much not done.

Live · PWA · Social
  • React
  • Supabase
  • AI APIs
  • PWA
Visit punchesapp.com
Punches app
02
Amazon Web Services · Summer 2025

LATAM
Automation

A Python + React + LLM platform that compresses public-sector contact discovery from 5–7 days to 1 hour. ETL pipelines over open datasets in Chile and Mexico, with generative-AI entity recognition.

98% faster · +85% accuracy
  • Python
  • React
  • LLMs
  • ETL
  • AWS
IN
ETL
LLM
OUT
Chile · Mexico · LATAM public sector
03
Unity · ML research

John Deere
Simulation

A real-time 3D agricultural simulation — Unity/C# front, Python/PyTorch back, WebSocket bridge to a React dashboard. Q-learning agents trained on harvester path optimization.

-25% idle time · Q-learning
  • Unity
  • C#
  • Python
  • PyTorch
  • React
  • WebSocket
🚜
PATHQ-learned
IDLE-25%
STEPS12.4k
04
Banco Nacional de Crédito · Caracas · 2024

Mobile
Banking

Flutter / Dart mobile banking app for a national bank in Caracas. Secure API endpoints for real-time balance queries and transaction tracking. SQL tuned for zero downtime.

+25% engagement · 600+ daily tx
  • Flutter
  • Dart
  • SQL
  • REST
  • Security
Quoota
••••••••••••2214
SANTIAGO V. CHANG05/26
05
Digital Hub · Monterrey · 2024

Startup
Admissions

Automated startup intake with Python + HubSpot APIs. PowerBI dashboards and lead-tracking queries supporting investor decisions on 50+ evaluated startups.

-40% review time · +60% visibility
  • Python
  • HubSpot
  • Power BI
  • Excel
  • SQL
JANFEBMARAPRMAY
Startups evaluated 50+
End of the hoard

More incoming.

Want the next one to be with you?

Work with me
04 Community

Where I plug in.

Outside of work, I spend time on consulting, tech advocacy, Latino professional development, and engineering teams that actually build things. These four shaped how I show up.

Active

Mason Consulting Group

Lead Consultant · Jan 2026 →

Student-run management-consulting group at George Mason, pairing teams with Fairfax-County clients on financial, marketing, and software-engineering engagements. This is where I'm sharpening the consulting craft alongside engineering.

  • Consulting
  • Strategy
  • Fairfax
Member

ALPFA

Association of Latino Professionals for America

Founded 1972 · 100,000+ Latino professionals and students nationwide. Student and professional chapters, mentorship, scholarships, and a 5,000-person annual convention. I lean on ALPFA for career growth and the Latino professional network across the U.S.

  • USA
  • Latino · Professional
  • Mentorship
2023 — 2024

Microsoft Learn Student Ambassador

Ambassador · Remote

Microsoft's global program for student developers who teach. I hosted workshops on Azure, GitHub, and the Power Platform for fellow students — leveling up on cloud and dev-tooling while helping other Latin-American students do the same.

  • Azure
  • GitHub
  • Power Platform
  • Community
2023

VANT TEC

Director of Sponsors · Tec de Monterrey

Vehículos Autónomos No Tripulados del Tecnológico — the student team at Tec de Monterrey building autonomous vehicles that compete internationally. I secured $20K+ in technology sponsorships and integrated vendor solutions directly into the team's autonomous systems.

  • Autonomous · Vehicles
  • Tec de Monterrey
  • Sponsorships
05 Credentials

Earned on paper.

Education

Current

B.S. Computer Science

George Mason University · Fairfax, VA · May 2026

Data Structures · Algorithms · Databases · Web Dev · Computer Systems · Machine Learning · Networking · Cloud Architecture · OOP · Intro to AI.

Studied abroad

Computer Science Studies

Tecnológico de Monterrey · Monterrey, MX · 2023 — 2024

Formative year in Mexico's top engineering school. Director of Sponsors at VANT TEC, internship at Digital Hub, and the chapter that set up everything that came next.

Certifications

Amazon Web Services

AWS Certified
Cloud Practitioner

Foundational certification covering AWS cloud concepts, core services, security, architecture, pricing, and support.

Amazon Web Services

AWS Certified
AI Practitioner

Certification in AI/ML fundamentals on AWS — generative AI, foundation models, responsible AI, and AWS-specific services.

McKinsey & Company

McKinsey
Forward Program

Invitation-only learning program from McKinsey covering problem-solving, leadership, communication, digital skills, and personal wellbeing.

Toolkit

Languages

PythonC++CJavaJavaScriptSQLHTMLCSS

Frameworks & Tools

FlutterReactUnityPyTorchSupabasePostmanHubSpotSalesforcePower BIAI APIs

Spoken

Spanish · nativeEnglish · fluent
06 Contact

Let's build something.

Open to 2026 new-grad SWE / cloud / LLM roles. Also: freelance gigs, weird side projects, and anything involving Latin America + software.